Patents by Inventor Thomas C. Shroeder

Thomas C. Shroeder has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Active suspending
    Patent number: 8548678
    Abstract: An apparatus has an active suspension including an electromagnetic actuator coupled to a plant in a vehicle. A force bias eliminator is coupled to the plant for causing the actuator to experience a zero-mean load, and a vibration isolation block generates a control signal based on the response of a nominal plant to measured disturbances of the actively suspended plant. A compensation system modifies the control signal in response to a difference between the response of the nominal plant to the control signal and a measured response of the actively-suspended plant to the control signal.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: October 1, 2013
    Assignee: Bose Corporation
    Inventors: Upendra V. Ummethala, Daniel Francis Opila, James A. Parison, Jr., Thomas C. Shroeder, Linda T. Scully, Roman N. Litovsky